[Elecraft] 2 radios, 1 antenna... finally a prototype!

JEAN-FRANCOIS MENARD jfmenard at mac.com
Sat Nov 19 18:35:42 EST 2005


Just to make sure I'm clear on my message... this interface is made  
for listening on two radios at the same time from one antenna. But  
when one radio transmit, the other in mute by putting it's antenna on  
ground and vice-versa.

Le 05-11-19 à 18:02, JEAN-FRANCOIS MENARD a écrit :

> Hi,
>
> I finally did a first prototype of an interface to link two K2/ 
> KPA100 on one multi-band HF antenna using Don W3FPR schematic. For  
> my first "from scratch" project, it is not too bad. I first began  
> to do a PCB. I used two fast SPDT 16A relays from Omron and SO-239  
> connectors are Amphenol.
>
> I will try it tonight.... But on the bench test, everything was  
> working fine... Maybe I will need to put a few caps to filter some  
> RF, I'm not sure.... I will tell you later tonight. This is my  
> first prototype version... My « main goal » is to have a interface  
> like this one, but also one mic and one paddle for 2 radios.
>
> Unfortunatly, I forgot to take picture of my PCB. But I will put  
> Don's schematic on my website this week.
>
> Take a look... http://homepage.mac.com/jfmenard/PhotoAlbum55.html
>
> 73
>
> P.S. Many thanks to Don W3FPR for his help. ;-)
>
> =============================================
> /¯\/¯\/¯\/¯\/¯\/¯\   JEAN-FRANCOIS MENARD
>  V  A  2  V  Y  Z
> \_/\_/\_/\_/\_/\_/
>
> FISTS #11896
> Elecraft K2 #4130
> Elecraft KX1 #999
>
> http://homepage.mac.com/jfmenard
> =============================================
>
>
>
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